• Journal of the Korean Society of Radiology
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• v.15 no.2
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• pp.117-123
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• 2021

This paper is to establish a basis for a dose reduction strategy by confirming correlations with the factors that may affect the radiation dose based on the dose records in low-dose chest CT and abdominal non-contrast CT. In order to find out the causes of unnecessary exposure, the correlation between seven factors (age, gender, height, weight, BMI, patient status [inpatient and outpatient], and use of dose modulation) and CT dose were identified. Logistic regression was used as the statistical analysis for correlation verification. In the low dose chest CT, as the higher values of height and BMI and dose modulation off were associated with lowering the risk exceeding Diagnostic Reference Levels(DRL) (odds ration<1, p<0.05). However, as woman compared to man and the higher values of weight were associated with highering the risk exceeding DRL (odds ration>1, p<0.05). In the abdomen CT, as dose modulation off were associated with lowering the risk exceeding DRL (odds ration<1, p<0.05). Therefore It is necessary to conduct research on the relationship between various factors affecting radiation exposure and patient radiation dose for reducing the dose.

• KOMUNHWA
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• no.59
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• pp.88-111
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• 2002

This report tried to find the characters of the historical records about the kings' tombs of Shilla on Samgook-Sagi(chapter of Shilla) and Samgook-Yousa(chapter of Shilla Dynasty and strange things). As the result, Samgook-Sagi is the direct form of the d

• Journal of the Korea Academia-Industrial cooperation Society
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• v.15 no.7
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• pp.4258-4271
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• 2014

This study was conducted to determine the factors affecting the professional job perception and job satisfaction of medical recorders working at general hospitals. The study subjects were 314 medical recorders and health information technicians working at 42 general hospitals. The investigation was conducted using a standardized self-administered questionnaire during March 4-April 23, 2013. As a result, there was a significant correlation among gender, age, marital status, monthly salary, BMI, position, aptitude for one's duties, wish for a career transition, and perception of the prospects of the social status of medical recorders and health information technicians in the future and professional job perception. In particular, the demographic characteristics and work-related characteristics suggested a high correlation with the professional job perception. There was a significant correlation between age, monthly salary, BMI, position, work satisfaction, wish for a career transition, perception of the prospects of the respondent's social status, and professional job perception and work satisfaction. In particular, the work-related characteristic variables and professional job perception indicate a high correlation with the work satisfaction. The results indicated a high correlation between the demographic characteristics and job-related characteristics variables in terms of the professional job perception of medical recorders and health information technicians and between the work-related characteristics and professional job perception variables in terms of work satisfaction.

• Conservation Science in Museum
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• v.25
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• pp.85-94
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• 2021

Conservation treatment of metallic artifacts contaminated with corrosion and foreign substances requires changes in the shape, characteristics, weight and thickness of the artifacts. Thus far, recording the changes after conservation treatment has mainly been performed through visual observation and photography, which lacks any quantitative description of the changes. In this study, the processes of removing foreign substances, joining cracks, and restoring an affected area were recorded using 3D scanning and then quantitatively analyzed to identify changes in form due to conservation treatment. The volume change after the conservation process was calculated based on the results of the 3D scanning, and numerical data on the changes to the form was analyzed. It was revealed that the foreign or corroded substances removed after the conservation accounted for 18.1 cm³, which is approximately 52% of the total volume of the ring pommel, and those substances were removed from about 98% of the surface of the ring pommel. This study confirmed that 3D form analysis was useful for recording the processes of conservation treatment and analyzing the results. It is therefore believed that this methodology can be applicable to not only metal artifacts, but to cultural heritage items in a range of materials.

• Korean journal of applied entomology
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• v.50 no.1
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• pp.15-19
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• 2011

Three species of the genus Neolygus Knight - N. hakusanensis (Yasunaga, 1991), N. roseus (Yasunaga, 1991) and N. zhugei (Yasunaga, 1991) - are recognized for the first time in Korea. An identification key to the eleven Korean Neolygus species is presented. Some illustrations of male genitalic structures are also provided.

• Proceedings of the KIEE Conference
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• 2007.11b
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• pp.60-62
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• 2007

This paper presents apparatus and its method for event record of digital substation based on SCL files, which can save communication messages of a variety of IEC61850 international standard applied substation events such as fault. In particular, the device has ability to analyze all of the events and faults, and performs its functions based on SCL files.

• Korean journal of applied entomology
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• v.55 no.1
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• pp.63-65
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• 2016

The subfamily Megalopsidiinae Leng belonging to the family Staphylinidae is reported for the first time in Korea based on the discovery of Megolopinus japonicus (Nakane). The photographs of adult, aedeagus and male sternite IX are provided.

• Proceedings of the Korea Society for Simulation Conference
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• 2000.11a
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• pp.91-96
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• 2000

차세대 무선 통신 서비스의 응용은 다양한 형태로 발전하고 있다. 그 중에서 응급상황이나 학내망 같이 특수한 경우에 제공될 수 있는 시나리오로 다중 홉(Multi-hop) 다중 링크(Multi-link) ad-hoc 망을 들 수 있다. Ad-hoc망은 한정된 자원 문제와 변화가 심한 링크 용량문제가 있으며, 다중 홉상의 노드가 이동함으로 토폴로지의 동적 변화문제도 발생한다. 이러한 망의 노드는 송·수신단 역할을 할 뿐만 아니라 패킷을 전달하는 중간 노드의 역할도 하기 때문에 파워의 절약 매카니즘이 절실히 필요하게 된다. 본 논문은 PAMAS에 기반하여, 별도의 제어 채널에 버퍼를 두어 송·수신자 주소와 전송할 데이터의 크기의 정보를 버퍼에 기록하여 예약하고 제어 채널에서 데이터 채널의 파워를 제어할 수도 있으므로 데이터 전송에서 충돌을 예방하고 효율적으로 파워를 절약할 수 있다. 데이터 전송 발생율을 바꿔가며 시뮬레이션 결과 일반적인 방법을 사용한 노드들보다 훨씬 좋은 파워 절약을 이루고 있음을 알 수 있었다.

• Journal of Digital Contents Society
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• v.4 no.2
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• pp.191-202
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• 2003

This paper presents a design and implementation example of intelligent equipment management system that is constructed to manage high price equipment of digital content department effectively. To support system operation we executed data mining and presented various rules that appear in dat3 mining process based on dat3 of user, equipment and using record. We presented personalization plan of web site to offer user dependent administration policy and dynamic interface using analyzed informatio.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2021.10a
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• pp.47-49
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• 2021

According to the revision of the Data 3 Act in 2020, personal information of medical data can be processed anonymously for statistical purposes, research, and public interest record keeping. However, unidentified data can be re-identified using genetic information, credit information, etc., and personal health information can be abused as sensitive information. In this paper, we derive the need for homomorphic encryption to protect the privacy of personal information separated by sensitive information.